Home / 18,516.47-27,742.30-15,416.39

Finding the Fourth Proportional to 18,516.47, 27,742.30 and 15,416.39

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Solution

The fourth proportional to 18,516.47, 27,742.30 and 15,416.39 is: 23,097.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,516.47 : 27,742.30 = 15,416.39 : x
  2. Step 2: Convert to fraction form
    18,516.47/27,742.30 = 15,416.39/x
  3. Step 3: Cross multiply
    18,516.47x = 27,742.30 × 15,416.39
  4. Step 4: Simplify right side
    18,516.47x = 427,686,147.11
  5. Step 5: Solve for x
    x = 427,686,147.11/18,516.47
  6. Step 6: Final answer
    x = 23,097.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.